The website of the Heraldry Society is well constructed and clearly laid out. It contains detailed information about their activities and publications, along with limited heraldic data. They also offer examinations and qualifications in heraldry at various levels.

The IMB, established in 1967, is the leading interdisciplinary bibliography of the Middle Ages. It is produced by an editorial team at the University of Leeds, UK, and some 30 contributors world wide. It covers periodical literature and miscellany volumes published in Europe, North America, Australasia, Brazil, Japan and South Africa. The printed IMB appears twice a year, covering most recent publications.

A private website with information about the Sinclair family including English, Scottish, Irish, Norman and Scandinavian branches.

A UK-based group that aimed to continue the work of the former Society of Indexers Genealogical Group (SIGG). FLHIG acquired the rights to the SIGG newsletter, from which a number of useful articles on indexing are on open access on the website, including one by Peter Hammond on the difficulty of producing an index to the Complete Peerage. The group is defunct but the website (static) is being maintained for now by the FMG secretariat.